Ultrasound-assisted dispersive liquid–liquid microextraction plus simultaneous silylation for rapid determination of salicylate and benzophenone-type ultraviolet filters in aqueous samples

Wu, Jen Wen; Chen, Hsin‐Chang; Wang, Ding

doi:10.1016/j.chroma.2013.06.017

Cited by 71 publications

(46 citation statements)

References 37 publications

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“…These studies were conducted under high temperatures (60 o C) and for at least 30 min of reaction time. Some authors couple extraction methods like DLLME (Wu et al, 2013) and SBSE (Kawaguchi et al, 2008) with in situ derivatisation, which seems to increase the throughput of sample analysis.…”

Section: Chromatographic Analysismentioning

confidence: 99%

“…The usual combinations of extractant and disperser used of UVfilters extraction are chloroform/acetone (CHL/Ac) (Benedé et al, 2014;Tarazona et al, 2010;Tovar-Sánchez et al, 2013) and tetrachloroethylene/Ac (Wu et al, 2013 (Ye et al, 2011) are starting to be used, due to their unique physical and chemical properties, such as non-flammability, negligible vapour pressure, good extractability for a wide spectrum of inorganic, organic and organometallic compounds, as well as tuneable viscosity and miscibility with water and organic solvents (Zhang and Lee, 2012a). This technique was tested in five classes of UV-filters (benzophenone, camphor, salicylate, crylene and p-aminobenzoic acid derivatives) and conducted to high recovery rates (70-118%), using different matrices like river, lake, sea and swimming pool waters (Benedé et al, 2014;Wu et al, 2013;TovarSánchez et al, 2013;Zhang et al, 2011;Tarazone et al, 2010).…”

Section: Dllme Is a Liquid-liquid Extraction (Lle) Based On The Relamentioning

confidence: 99%

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Advances in analytical methods and occurrence of organic UV-filters in the environment — A review

Ramos

Homem

Alves

et al. 2015

Science of The Total Environment

258

110

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UV-filters are a group of compounds designed mainly to protect skin against UVA and UVB radiation, but they are also included in plastics, furniture, etc., to protect products from light damage. Their massive use in sunscreens for skin protection has been increasing due to the awareness of the chronic and acute effects of UV radiation. Some organic UV-filters have raised significant concerns in the past few years for their continuous usage, persistent input and potential threat to ecological environment and human health. UV-filters end up is wastewater and because wastewater treatment plants are not efficient in removing them, lipophilic compounds tend to sorb onto sludge and hydrophilics end up in river water, contaminating the existing biota. To better understand the risk associated with UV-filters in the environment a thorough review regarding their physicochemical properties, toxicity and environmental degradation, analytical methods and their occurrence was conducted.Higher UV-filter concentrations were found in rivers, reaching 0.3 mg/L for the most studied family, the benzophenone derivatives. Concentrations in the ng to µg/L range were also detected for the paminobenzoic acid, cinnamate, crylene and benzoyl methane derivatives in lake and sea water.Although at lower levels (few ng/L), UV-filters were also found in tap and groundwater. Swimming pool water is also a sink for UV-filters and its chlorine by-products, at the µg/L range, highlighting the benzophenone and benzimidazole derivatives. Soils and sediments are not frequently studied, but concentrations in the µg/L range have already been found especially for the benzophenone and crylene derivatives. Aquatic biota is frequently studied and UV-filters are found in the ng/g-dw range with higher values for fish and mussels. It has been concluded that more information regarding UVfilter degradation studies both in water and sediments is necessary and environmental occurrences should be monitored more frequently and deeply. SEHSDT -sequential extraction with high-speed dispersion tool; SLE -solid-liquid extraction; SPEsolid-phase extraction; SPF -sun protection factor; SPLE -selective pressurized liquid extraction;SPMDs -semipermeable membrane devices; SPME -solid phase microextraction; TD -thermal desorption; TCE -tetrachloroethylene; THF -tetrahydrofuran; Tl -toluene; UPLC -ultraperformance liquid chromatography; USE -ultrasound extraction; UV -ultraviolet; WTP -water treatment plant; WWTP -wastewater treatment plant 4

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Section: Chromatographic Analysismentioning

confidence: 99%

Section: Dllme Is a Liquid-liquid Extraction (Lle) Based On The Relamentioning

confidence: 99%

Advances in analytical methods and occurrence of organic UV-filters in the environment — A review

Ramos

Homem

Alves

et al. 2015

Science of The Total Environment

258

110

View full text Add to dashboard Cite

show abstract

“…Thus, Tarazona et al [47], Negreira et al [48] and later Benedé et al [81], proposed classical DLLME with organochlorine solvents and acetone as extracting and disperser solvents, respectively. In order to increase the dispersion of the extracting solvent into the aqueous samples, Wu et al [75] proposed the use of ultrasounds to produce finer extracting droplets in the so-called ultrasound-assisted DLLME (USA-DLLME) approach. However, in order to avoid the presence of the disperser solvent, which usually decreases the partition coefficient of the target compounds into the extracting solvent, new approaches have been used.…”

Section: Uv Filtersmentioning

confidence: 99%

“…Regarding GC-MS, simple quadrupole analyzers (Q) are used in most of the cases, whereas ionic tramps (IT) [75] and time-of-flight (TOF) analyzers [50,56] have been also used but in scarce occasions. In the case of TOF, it was coupled to two-dimensional GC (i.e., GCxGC) [50,56].…”

Section: Uv Filtersmentioning

confidence: 99%

“…In order to increase their volatility, they are sometimes derivatized. Silylation, either with N-methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) [26,27,35,82], N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) [47,53,60,61,63,75] or N-(tert-butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) [68], is preferred in most of the cases in case of target compounds presenting labile hydrogens, although acetylation with anhydride acetic has been also used [30]. Oxime formation by means of reaction of carbonyl groups with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine (PFBHA) has been proposed in the case of target compounds without labile hydrogens [82].…”

Section: Uv Filtersmentioning

confidence: 99%

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Analytical Methodologies for the Determination of Personal Care Products in Water Samples

Chisvert

Salvador

2014

The Handbook of Environmental Chemistry

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Personal-care products (PCPs) could reach the aquatic environment and cause a great impact in the aquatic ecosystem. In this sense, the monitoring of these emerging pollutants in the environment yields valuable information. For this reason, analytical methods to determine PCPs in environmental waters are needed. Due to the low concentration of the PCPs, i.e. ng L À1 , sensitive methods are needed. This required sensitivity can be achieved by using sensitive analytical techniques during the measurement step, or by employing enrichment techniques during the sample treatment step. Obviously, the combination of both sensitive analytical techniques and extraction techniques considerably improves the quality of the determination.In this way, in the last years, different analytical methods have been developed to determine PCPs in environmental waters from different origin, i.e., water from sea, lake, river, influent and/or effluent wastewater treatment plant, swimming pool, tap, and groundwater. The aim of this chapter is to compile and discuss the analytical literature dealing with the development and validation of analytical methods for determining PCPs in environmental water samples, emphasizing both the employed sample treatment and the subsequent analytical technique.

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Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

Yücel

Ertaş

et al. 2022

CLEAN Soil Air Water

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A simple, rapid, and sensitive method is developed for the determination of UV filters in river waters by applying the vortex-assisted dispersive liquid-liquid microextraction based on solidified floating organic droplet technique followed by the injector port silylation (IPS) in a gas chromatography-tandem mass spectrometry system. Statistical experimental design methods including general factorial design, one factor at a time, and central composite face-centered design are used for optimization purposes. Under optimized conditions, 460 µL of acetone and 30 µL of 2-dodecanone are rapidly injected into a 10 mL water sample with 10% (w/v) NaCl at pH 2.5 and vortexed for 3 min. After centrifugation, 2 µL of the separated organic solvent is subjected to auto-IPS with 1 µL of bis (trimethylsilyl) trifluoroacetamide containing 1% trimethylchlorosilane, at 260 °C for 4.5 min in programmable temperature vaporization mode. As a result of the validation studies, the intra-day and inter-day precision indicated as relative standard deviation are less than 12.4% and 18.8%, respectively. For all UV filters, detection limits are between 1.1 and 5.5 ng L −1 and limit of quantitation values are between 3.1 and 16.6 ng L −1 . Successful recovery of extraction values (77.1%-107.4%) and good enrichment factors (231-350) are obtained.

show abstract

Ultrasound-assisted dispersive liquid–liquid microextraction plus simultaneous silylation for rapid determination of salicylate and benzophenone-type ultraviolet filters in aqueous samples

Cited by 71 publications

References 37 publications

Advances in analytical methods and occurrence of organic UV-filters in the environment — A review

Advances in analytical methods and occurrence of organic UV-filters in the environment — A review

Analytical Methodologies for the Determination of Personal Care Products in Water Samples

Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

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